问题
单项选择题
In Go Down, Moses, ________ illuminates the problem of black and white in Southern society as a close- knit destiny of blood brotherhood.
A．William Faulkner
B．Jack London
C．Herman Melville
D．Nathaniel Hawthorne
答案
参考答案：A
，口内法进行下牙槽神经阻滞麻醉后患者很快出现暂时性牙关紧闭，这可能是因为（）